Screen Issues, Fades to white , got freeze and shows lines

I bought this damage macbook, it has a screen issue, it shows multicolor lines and sometimes it gets freeze and fades to white, i went to a authorized retailer to see how i can fix it.. they told me i need to buy the whole display with a cost of 900 dollars.. its too expensive.. i made a research to figure out whats going on.. but i have a lot of doubts, to avoid the total replacement of the display, i can replace the LCD or the LVDS cable, there is no problem with the logic board.... i've done the following...

-I connected the macbook to an external monitor.. and it worked fine.

-I took screenshots to the macbook's desktop and everything its ok .. the picture looks nice without lines or distorsions..

- I took a video of the desktop and everthing its ok.. the video was great.. without lines or distorsions.

my dout is... what do i need to replace in my macbook to fix the issue????

The LCD or the LVDS cable.. i dont know what to do...

I guess that probably.. its a LCD problem and i just need to replace the lcd.. because all the tests i did.. but i dont know.. i hope you can help me.. thanks..

4 Answers

if you say that on external monitor it is ok, i assume that graphic chip is okay. I would go for the LVDS cable first since it is a lot cheaper, however, taking the display apart is a tough job - but if it is a bad LCD panel you have to take it apart too to replace it (if you buy just LCD panel and not the whole display assembly)

The problem is likely the LCD panel. If you bang the display you can dislodge the driver chips or flex-circuit from the glass panel. These cause the screen to have odd colors or bands of black or white.

Resources

Repairability

Stay in the loop

It's time to speak out for your right to repair

We have a chance to guarantee our right to repair electronic
equipment—like smartphones, computers, and even farm equipment. This is a once-in-a-generation
chance to protect local repair jobs—the corner mom-and-pop repair shops that
keep getting squeezed out by manufacturers.

Join the cause and tell your state representative to support Right to Repair. Tell them you believe repair should be fair, affordable, and accessible. Stand up for your right to repair!